See bottom of this page for a brief discussion of taxa formally federally listed from Utah.

Note: the UNPS priority list column is in progress. Also, this list does not yet include all of the taxa included on the
2009 UNPS rare plant list. See the 11/1/09 What's new section for more details and links.
The 2009 UNPS Utah rare plant list published 11/01/09
should be taken into account whenever considering project impacts to rare plants and not just the list presented here. See the
November 2009 Sego Lily
in which the criteria used in developing this list is discussed.

Number of taxa ranked by UNPS as "extremely high" priority: 37 (2014 draft list). All of these exH species are globally rare, and all but two are local endemics.

Number of taxa ranked by UNPS as "high" priority: 135 (2014 draft list). Most of these (111) are local endemics. Only six of these are peripherally and not globally rare, two are "sparse" and the remaining 16 are regional endemics.

Cirsium virginenseC. virginense has been lumped with C. mohavense in the Flora of North America (vol 19, pg 134), and the distinction between perennial (C. virginense) and biennial (C. mohavense) may not be valid. Even if recognized as C. mohavense it would remain rare in Utah at the periphery of its range here, and since C. mohavense is a globally rare species. Might be properly recognized at varietal level.

Astragalus perianus:
listed as threatened effective 5/27/78, delisted eff. 10/16/89, more information (species was listed prematurely prior to being fully surveyed, the indication that it "recovered" by FWS is not accurate; still considered rare and is therefore contained in the list of globally rare plants above; the first ever plant species to be delisted under the Endangered Species Act and for reasons unrelated to taxonomy, delisting action was initiated by Dr. Duane Atwood then of the USFS)

Echinocereus engelmanii var. purpureus:
listed as endangered 10/11/79, delisted eff. 12/27/89, more information (no longer considered a valid taxon, however, there remains a purple-spined form of Echinocereus engelmanii that warrants conservation attention)

Echinocereus triglochidiatus* var. inermis:
listed as endangered eff. 12/7/79, delisted eff. 9/22/93, more information
(while no longer considered a valid taxon, this mostly spineless form of what is actually Echinocereus mojavensis* still warrants and receives management attention; *as now understood and unrelated to prior disposition of the "inermis" variety , the species Echinocereus triglochidiatus does not occur in Utah)